How do I use a Highlighter Marker effect to emphasize text in Draw?
Use a Text box and place it over the image.
Right-click on the image and select Area > Color and, for example, yellow.
And you can group the Image and Text box
123234 HB Text in image.odg (81,8 KB)
With me:
Version: 25.2.4.3 (X86_64) / LibreOffice Community
Build ID: 33e196637044ead23f5c3226cde09b47731f7e27
CPU threads: 8; OS: Windows 10 X86_64 (10.0 build 19045); UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: de-DE
Calc: CL threaded